Author: Robert Bottge
Publisher:
ISBN:
Category : Copper mines and mining
Languages : en
Pages : 68
Book Description
To better understand those factors which increase mining costs in Alaska, a Bureau of Mines study was conducted to compare the estimated costs of operating a 100,000-tpd open pit copper mine located on a hypothetical ore body in the Lake Clark area, Alaska, with the costs of mining a similarly sized hypothetical copper ore body near Tucson, Ariz. The information derived should be beneficial to the State and Federal governments in appraising the potential for development of large, low-grade porphyry copper deposits in south-central Alaska. Conventional mining and concentrating methods were assumed, and capital and operating costs were derived using flowsheets and standard costing methods. The total price required for copper mined in Alaska and Arizona was $1.12 and $0.63 per pound, respectively, plus or minus 20 percent. These values were obtained assuming no leaching of low-grade copper, recovery of gold, silver, and molybdenum as byproducts, 100-percent equity financing, and a 12 percent discounted cash flow rate of return. The average domestic and international prices for copper in July 1973 were $0.60 and $0.916 per pound, respectively. The existence of a developed transportation and power system in Alaska would have reduced capital and operating costs subs tantially. The required price for copper would have declined from $1.12 to $1.05 per pound, plus or minus 20 percent.
Comparative Porphyry Copper Mining and Processing Costs - Alaska and Arizona
Author: Robert Bottge
Publisher:
ISBN:
Category : Copper mines and mining
Languages : en
Pages : 68
Book Description
To better understand those factors which increase mining costs in Alaska, a Bureau of Mines study was conducted to compare the estimated costs of operating a 100,000-tpd open pit copper mine located on a hypothetical ore body in the Lake Clark area, Alaska, with the costs of mining a similarly sized hypothetical copper ore body near Tucson, Ariz. The information derived should be beneficial to the State and Federal governments in appraising the potential for development of large, low-grade porphyry copper deposits in south-central Alaska. Conventional mining and concentrating methods were assumed, and capital and operating costs were derived using flowsheets and standard costing methods. The total price required for copper mined in Alaska and Arizona was $1.12 and $0.63 per pound, respectively, plus or minus 20 percent. These values were obtained assuming no leaching of low-grade copper, recovery of gold, silver, and molybdenum as byproducts, 100-percent equity financing, and a 12 percent discounted cash flow rate of return. The average domestic and international prices for copper in July 1973 were $0.60 and $0.916 per pound, respectively. The existence of a developed transportation and power system in Alaska would have reduced capital and operating costs subs tantially. The required price for copper would have declined from $1.12 to $1.05 per pound, plus or minus 20 percent.
Publisher:
ISBN:
Category : Copper mines and mining
Languages : en
Pages : 68
Book Description
To better understand those factors which increase mining costs in Alaska, a Bureau of Mines study was conducted to compare the estimated costs of operating a 100,000-tpd open pit copper mine located on a hypothetical ore body in the Lake Clark area, Alaska, with the costs of mining a similarly sized hypothetical copper ore body near Tucson, Ariz. The information derived should be beneficial to the State and Federal governments in appraising the potential for development of large, low-grade porphyry copper deposits in south-central Alaska. Conventional mining and concentrating methods were assumed, and capital and operating costs were derived using flowsheets and standard costing methods. The total price required for copper mined in Alaska and Arizona was $1.12 and $0.63 per pound, respectively, plus or minus 20 percent. These values were obtained assuming no leaching of low-grade copper, recovery of gold, silver, and molybdenum as byproducts, 100-percent equity financing, and a 12 percent discounted cash flow rate of return. The average domestic and international prices for copper in July 1973 were $0.60 and $0.916 per pound, respectively. The existence of a developed transportation and power system in Alaska would have reduced capital and operating costs subs tantially. The required price for copper would have declined from $1.12 to $1.05 per pound, plus or minus 20 percent.
Comparative Porphyry Copper Mining and Processing Costs - Alaska and Arizona
Author: Robert G. Bottge
Publisher:
ISBN:
Category : Copper mines and mining
Languages : en
Pages : 0
Book Description
To better understand those factors which increase mining costs in Alaska, a Bureau of Mines study was conducted to compare the estimated costs of operating a 100,000-tpd open pit copper mine located on a hypothetical ore body in the Lake Clark area, Alaska, with the costs of mining a similarly sized hypothetical copper ore body near Tucson, Ariz. The information derived should be beneficial to the State and Federal governments in appraising the potential for development of large, low-grade porphyry copper deposits in south-central Alaska. Conventional mining and concentrating methods were assumed, and capital and operating costs were derived using flowsheets and standard costing methods. The total price required for copper mined in Alaska and Arizona was $1.12 and $0.63 per pound, respectively, plus or minus 20 percent. These values were obtained assuming no leaching of low-grade copper, recovery of gold, silver, and molybdenum as byproducts, 100-percent equity financing, and a 12 percent discounted cash flow rate of return. The average domestic and international prices for copper in July 1973 were $0.60 and $0.916 per pound, respectively. The existence of a developed transportation and power system in Alaska would have reduced capital and operating costs subs tantially. The required price for copper would have declined from $1.12 to $1.05 per pound, plus or minus 20 percent.
Publisher:
ISBN:
Category : Copper mines and mining
Languages : en
Pages : 0
Book Description
To better understand those factors which increase mining costs in Alaska, a Bureau of Mines study was conducted to compare the estimated costs of operating a 100,000-tpd open pit copper mine located on a hypothetical ore body in the Lake Clark area, Alaska, with the costs of mining a similarly sized hypothetical copper ore body near Tucson, Ariz. The information derived should be beneficial to the State and Federal governments in appraising the potential for development of large, low-grade porphyry copper deposits in south-central Alaska. Conventional mining and concentrating methods were assumed, and capital and operating costs were derived using flowsheets and standard costing methods. The total price required for copper mined in Alaska and Arizona was $1.12 and $0.63 per pound, respectively, plus or minus 20 percent. These values were obtained assuming no leaching of low-grade copper, recovery of gold, silver, and molybdenum as byproducts, 100-percent equity financing, and a 12 percent discounted cash flow rate of return. The average domestic and international prices for copper in July 1973 were $0.60 and $0.916 per pound, respectively. The existence of a developed transportation and power system in Alaska would have reduced capital and operating costs subs tantially. The required price for copper would have declined from $1.12 to $1.05 per pound, plus or minus 20 percent.
Comparative Porphyry Copper Mining and Processing Costs-Alaska and Arizona
Author: Etats-Unis. Bureau of mines
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
Book Description
Information Circular
Author:
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 520
Book Description
Publisher:
ISBN:
Category : Mines and mineral resources
Languages : en
Pages : 520
Book Description
Alaskan Resources Development
Author: Thomas A. Morehouse
Publisher: Routledge
ISBN: 042972523X
Category : Political Science
Languages : en
Pages : 233
Book Description
Many U.S. citizens and policymakers look to Alaska as a resource storehouse for the remaining years of 1980s and beyond. This book examines the federal and state policies, economic and political constraints, and social consequences of Alaskan resources development during two decades.
Publisher: Routledge
ISBN: 042972523X
Category : Political Science
Languages : en
Pages : 233
Book Description
Many U.S. citizens and policymakers look to Alaska as a resource storehouse for the remaining years of 1980s and beyond. This book examines the federal and state policies, economic and political constraints, and social consequences of Alaskan resources development during two decades.
Monthly Catalog of United States Government Publications
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2834
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2834
Book Description
Management of fuel and nonfuel minerals in Federal land : current status and issues.
Author: United States. Congress. Office of Technology Assessment
Publisher: DIANE Publishing
ISBN: 1428924825
Category : Mines and mineral resources
Languages : en
Pages : 432
Book Description
Publisher: DIANE Publishing
ISBN: 1428924825
Category : Mines and mineral resources
Languages : en
Pages : 432
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1466
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1466
Book Description
New Publications
Author: United States. Bureau of Mines
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 200
Book Description
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 200
Book Description
New Publications from the MSHA Informational Service Library
Author: Safety and Health Technology Center (Denver, Colo.). Informational Service Library
Publisher:
ISBN:
Category : Mine safety
Languages : en
Pages : 18
Book Description
Publisher:
ISBN:
Category : Mine safety
Languages : en
Pages : 18
Book Description